WO2022262430A1 - Soupape de commande de refroidissement, procédé de commande, système de refroidissement de transmission à double embrayage et véhicule - Google Patents

Soupape de commande de refroidissement, procédé de commande, système de refroidissement de transmission à double embrayage et véhicule Download PDF

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Publication number
WO2022262430A1
WO2022262430A1 PCT/CN2022/089178 CN2022089178W WO2022262430A1 WO 2022262430 A1 WO2022262430 A1 WO 2022262430A1 CN 2022089178 W CN2022089178 W CN 2022089178W WO 2022262430 A1 WO2022262430 A1 WO 2022262430A1
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WO
WIPO (PCT)
Prior art keywords
oil
cooling
oil inlet
valve
oil outlet
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PCT/CN2022/089178
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English (en)
Chinese (zh)
Inventor
宋建军
唐立中
康志军
刘振宇
樊雪来
毛泽贤
金星月
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中国第一汽车股份有限公司
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Publication of WO2022262430A1 publication Critical patent/WO2022262430A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N23/00—Special adaptations of check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems

Definitions

  • the present application relates to the technical field of vehicle cooling control, for example, to a cooling control valve, a control method, a dual-clutch transmission cooling system and a vehicle.
  • dual-clutch automatic transmissions can make the overall structure of the gearbox body more compact and have greater torque transmission capacity.
  • both the clutch and the shafting will generate a lot of heat, and cooling oil is needed to cool the clutch and the shafting in real time to ensure normal operation.
  • the technical solution generally adopted in the related art is: according to the operating conditions, the cooling oil flow of the clutch is controlled in real time through a solenoid valve, and the cooling flow of the shafting is limited by an orifice, which is basically maintained at one under different working conditions. Relatively stable value (i.e. shaft cooling flow is not controllable).
  • shaft cooling flow is not controllable.
  • the application provides a cooling control valve, a control method, a dual-clutch transmission cooling system and a vehicle, which can realize simultaneous control of the shafting and clutch cooling circuits, simplify the structure and control process, save costs, reduce power loss, and ensure transmission efficiency .
  • One embodiment provides a cooling control valve, including: a valve casing, on which a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet are arranged, and the first oil outlet An oil inlet communicates with the second oil inlet, the first oil inlet is configured to communicate with the first oil outlet, and the second oil inlet is configured to communicate with the second oil outlet connected; the spool is movably plugged into the valve housing, the spool is provided with a first stopper and a second stopper, and the first stopper and the second stopper are provided with There are oil passages, and the oil passages communicate with the first oil inlet and the second oil inlet respectively, and the first oil outlet and the second oil outlet are respectively arranged to communicate with the The oil passage is communicated; and the driving part is connected with the external power supply, the driving part is connected with the valve core in transmission, and the driving part can drive the valve core to move so that the first stopper, the second The stopper blocks or avoids the second oil outlet and the first
  • An embodiment also provides a control method, using the above-mentioned cooling control valve, the control method includes: adjusting the current I of the driving member to a first preset value, making the valve core at the initial position, and the first step The oil port is not connected to the first oil outlet, and the second oil inlet is connected to the second oil outlet; the current I of the driver is adjusted to a second preset value, and the second preset value is greater than the first preset value value, so that the spool moves in the valve casing, the first oil inlet communicates with the first oil outlet, and the second oil inlet communicates with the second oil outlet; and the The current I of the driving part is adjusted to a third preset value, and the third preset value is greater than the second preset value, so that the valve core continues to move in the valve housing, the first oil inlet and the The first oil outlet is connected, and the second oil inlet and the second oil outlet are not connected.
  • the present application also provides a cooling system for a dual-clutch transmission, including an oil supply circuit, a clutch cooling oil circuit, and a shaft cooling oil circuit.
  • the dual-clutch transmission cooling system also includes the cooling control valve as described above.
  • the oil passages are respectively connected to the first oil inlet and the second oil inlet, the clutch cooling oil passage is connected to the second oil outlet, and the shaft cooling oil passage is connected to the first oil outlet.
  • the present application also provides a vehicle, including a clutch and a shafting system, the vehicle also includes the dual-clutch transmission cooling system as described above, the clutch is connected to the clutch cooling oil circuit, and the shafting system is connected to the shafting cooling oil circuit Connection, so as to realize the cooling of the clutch and shafting.
  • Fig. 1 is a schematic diagram of the principle of the cooling control valve provided in Embodiment 1 of the present application;
  • Fig. 2 is a schematic structural diagram of the cooling control valve provided in Embodiment 1 of the present application;
  • Fig. 3 is a schematic diagram of the principle of the dual-clutch transmission cooling system provided by Embodiment 1 of the present application;
  • Fig. 4 is a schematic diagram of the principle of the cooling control valve provided in Embodiment 2 of the present application.
  • Fig. 5 is a schematic diagram of the principle of the dual clutch transmission cooling system provided by the second embodiment of the present application.
  • Cooling control valve 11. Valve housing; 111. First oil inlet; 112. Second oil inlet; 113. First oil outlet; 114. Second oil outlet; 12. Spool; 121. The first block; 122, the second block; 123, the oil passage; 124, the limit groove; 13, the elastic reset member; 14, the driving member;
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components.
  • connection can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components.
  • a first feature being "on” or “under” a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them.
  • “above”, “above” and “above” the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
  • “Below”, “beneath” and “under” the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
  • the embodiment of the present application discloses a cooling control valve 1, as shown in Fig. 1-Fig.
  • the valve core 12 is connected with a driving member 14 .
  • the valve housing 11 is provided with a first oil inlet 111, a second oil inlet 112, a first oil outlet 113 and a second oil outlet 114, the first oil inlet 111 and the second oil inlet
  • the oil port 112 communicates, the first oil inlet 111 can communicate with the first oil outlet 113 , and the second oil inlet 112 can communicate with the second oil outlet 114 .
  • the spool 12 is movably inserted into the valve casing 11, the spool 12 is provided with a first stopper 121 and a second stopper 122, and an oil passage is provided between the first stopper 121 and the second stopper 122 123 , the oil passage 123 communicates with the first oil inlet 111 and the second oil inlet 112 respectively, and the first oil outlet 113 and the second oil outlet 114 can communicate with the oil passage 123 .
  • the driver 14 is electrically connected to the external power supply, and the driver 14 is in transmission connection with the spool 12. The driver 14 can drive the spool 12 to move so that the first stopper 121 and the second stopper 122 are opposite to the second oil outlet 114 and the second oil outlet 114 respectively. The first oil outlet 113 is blocked or avoided.
  • the driving member 14 and the spool 12 remain relatively stable, the first oil inlet 111 communicates with the first oil outlet 113, and the second oil inlet 112 communicates with the second oil outlet 114, so as to simultaneously
  • the clutch and the shaft system are cooled; when the clutch requires instantaneous large flow, the driver 14 drives the spool 12 to move in the valve housing 11, so that the second block 122 blocks the first oil outlet 113, so that the first oil inlet
  • the port 111 and the second oil inlet 112 communicate with the second oil outlet 114 through the oil passage 123 to provide a sufficient amount of cooling oil to the second oil outlet 114 to realize sufficient cooling of the clutch; when the shaft system needs When the instantaneous flow rate is large, the driving member 14 drives the spool 12 to move in the reverse direction in the valve housing 11, so that the first stopper 121 blocks the second oil outlet 114, so that the first oil inlet 111 and the second oil inlet 112 communicates with the first oil outlet 113 through an oil passage 123 to provide
  • the cooling control valve 1 provided by the present application can realize simultaneous control of the shafting and clutch cooling circuits, simplify the structure and control process, and save costs, and the cooling flow can be adjusted according to different working conditions without the need for additional cooling.
  • the 26 specifications of the large oil pump can be adjusted to reduce power loss and ensure transmission efficiency.
  • the valve casing 11 is a cylindrical casing with one end closed and one end opened.
  • the inner wall of the valve housing 11 is provided with a plurality of arc-shaped grooves arranged at intervals, and the plurality of arc-shaped grooves are connected with the oil passage 123, the first oil inlet 111, the second oil inlet 112, and the first oil outlet 113. and the second oil outlets 114 are set in one-to-one correspondence to expand the oil passing capacity.
  • the first oil inlet 111 communicates with the second oil inlet 112 to form a large oil inlet, the first oil inlet 111, the second oil inlet 112, the first oil outlet 113 and the second oil outlet
  • the oil outlet 114 is disposed on the same side of the valve housing 11 .
  • the positions of the first oil inlet 111 , the second oil inlet 112 , the first oil outlet 113 and the second oil outlet 114 can be adjusted as required, and are not limited to this embodiment.
  • the first oil inlet 111 and the second oil inlet 112 are respectively connected to the oil supply oil passage 21, the second oil outlet 114 corresponds to the clutch cooling oil passage 23, and the first oil outlet 113 is connected to the shaft system
  • the cooling oil passages 22 are connected correspondingly, so that the clutch and the shaft system can be cooled together by one cooling control valve 1 , which simplifies the structure and reduces the installation cost.
  • the first oil outlet 113 and the second oil outlet 114 may also be respectively connected to corresponding equipment to realize cooling, which is not limited to this embodiment.
  • the valve core 12 is inserted into the valve housing 11 through the opening, and the first stopper 121 and the second stopper 122 abut against the inner wall of the valve housing 11 to ensure good sealing.
  • the first stopper 121 and the second stopper 122 are annular projections respectively, and the annular groove formed between the first stopper 121 and the second stopper 122 is an oil passage.
  • one end of the valve core 12 is provided with a limiting groove 124 .
  • the cooling control valve 1 further includes an elastic reset member 13 disposed between the inner wall of the valve housing 11 and the valve core 12 , configured to reset the valve core 12 to ensure the reciprocating movement of the valve core 12 .
  • the elastic return member 13 is abutted against and arranged in the limiting groove 124, so as to limit the elastic return member 13 and reduce the skew in motion.
  • the elastic return member 13 may be a spring, and the manufacturing cost is low.
  • the driving part 14 is an electromagnet, and the electromagnet abuts against one end of the spool 12, and the spool 12 can be pushed to move in the valve casing 11 by generating magnetic force through the energization of the electromagnet, so that the first stopper 121 is opposite to the second stopper 121.
  • the oil outlet 114 is shielded or avoided, and the second stopper 122 is shielded or avoided for the first oil outlet 113, so as to realize the adjustment of the amount of cooling oil to meet the use requirements of various working conditions.
  • the energizing current of the electromagnet be 1, by controlling the magnitude of the energizing current to the electromagnet, the magnetic force that the spool 12 is subject to can be controlled, and its displacement in the valve casing 11 can be controlled.
  • the specific control process is as follows:
  • the electromagnetic force of the electromagnet is less than or equal to the spring force of the elastic reset member 13, and the cooling control valve 1 is in the initial position.
  • An oil inlet 111 is not connected to the first oil outlet 113
  • the second oil inlet 112 is connected to the second oil outlet 114 .
  • the cooling oil provided by the oil supply oil circuit 21 flows into the clutch cooling oil circuit 23 through the second oil inlet 112 and the second oil outlet 114 to cool the clutch. condition.
  • the electromagnetic force provided by the electromagnet is greater than the spring force provided by the elastic reset member 13, and the spool 12 moves to the right ( Take the left and right directions in FIG. 1 as an example)
  • the first oil inlet 111 communicates with the first oil outlet 113
  • the second oil inlet 112 communicates with the second oil outlet 114 .
  • part of the cooling oil provided by the oil supply oil passage 21 flows into the clutch cooling oil passage 23 through the second oil inlet 112 and the second oil outlet 114 to cool the clutch, and the other part passes through the first oil inlet 111 and the second oil outlet 111.
  • An oil outlet 113 enters the shafting cooling oil passage 22 to cool the shafting.
  • the opening of the port 113 and the second oil outlet 114 can further control the clutch cooling flow and the shaft cooling flow to meet the requirements of different working conditions.
  • I1, I2 and I3 can be adjusted as required, and are not limited to this embodiment.
  • This embodiment also discloses a control method, using the cooling control valve 1 as described above, the control method includes the following steps:
  • part of the cooling oil provided by the oil supply oil passage 21 flows into the clutch cooling oil passage 23 through the second oil inlet 112 and the second oil outlet 114 to cool the clutch, and the other part passes through the first oil inlet 111 and the second oil outlet 111.
  • An oil outlet 113 enters the shaft system cooling oil passage 22 to cool the shaft system, which is suitable for the situation where the clutch and the shaft system need to be cooled at the same time under normal working conditions.
  • the driving member 14 is an electromagnet.
  • the force of the electromagnet acting on the valve core 12 can be controlled, thereby controlling the first oil outlet 113 and the second oil outlet.
  • the size of the opening of 114 can further control the clutch cooling flow and the shaft cooling flow to meet the needs of different working conditions.
  • the first preset value is greater than or equal to 0.2A
  • the second preset value is less than or equal to 1.2A
  • the third preset value is less than or equal to 1.5A.
  • the set value and the third preset value can be set as required, and are not limited to this embodiment.
  • This embodiment also discloses a dual-clutch transmission cooling system 2.
  • the oil supply oil passage 21 is connected to the first oil inlet 111 and the second oil inlet 112 respectively
  • the clutch cooling oil passage 23 is connected to the second oil outlet 114
  • the shaft cooling oil passage 22 is connected to the second oil outlet 114.
  • the first oil outlet 113 is connected to meet the cooling requirements of the clutch and the shafting at the same time, simplifying the structure and saving installation costs.
  • an oil tank 24, an oil suction filter 25, an oil pump 26, a cooler 27, and a pressure filter 28 are sequentially arranged on the oil supply circuit 21, and the pressure filter 28 is connected to the first oil inlet 111 respectively. It is connected with the second oil inlet 112 to realize oil supply to the first oil inlet 111 and the second oil inlet 112 .
  • the oil tank 24 stores cooling oil
  • the oil suction filter 25 is configured to filter the cooling oil
  • the oil pump 26 provides transmission power for the cooling oil
  • the cooler 27 is configured to cool the cooling oil to ensure the cooling oil Cooling effect
  • the pressure filter 28 filters the cooling oil flowing out of the cooler 27 again to reduce impurities
  • the cooled and filtered cooling oil flows into the cooling control valve 1 through the first oil inlet 111 and the second oil inlet 112 .
  • the dual-clutch transmission cooling system 2 further includes a bypass valve 29, the first end of the bypass valve 29 is connected to the oil supply oil passage 21 between the oil pump 26 and the cooler 27, and the bypass valve 29 The second end of each is connected with the first oil inlet 111 and the second oil inlet 112 respectively.
  • the cooling oil in the oil tank 24 is filtered by the oil suction filter 25, and then pumped to the oil supply circuit 21 by the oil pump 26 after being cooled by the cooler 27 and filtered by the pressure filter 28, so as to ensure Cooling effect of cooling oil.
  • the temperature of the cooling oil can be measured by a temperature sensor, and the criteria for judging whether the cooling oil is at low temperature, normal temperature, or high temperature can be set according to needs, which is not specifically limited in this embodiment.
  • the dual-clutch transmission cooling system 2 also includes a safety valve 291.
  • the safety valve 291 is arranged on the oil supply pipeline at the outlet of the oil pump 26 to limit the outlet oil pressure of the oil pump 26 and prevent the oil pump 26 from being damaged. .
  • This embodiment also discloses a vehicle, including a clutch and a shafting, the vehicle also includes the cooling system 2 of the dual-clutch transmission as described above, the clutch is connected to the clutch cooling oil passage 23, and the shafting is connected to the shafting cooling oil passage 22 , so as to realize the cooling of the clutch and shafting.
  • the embodiment of the present application provides a cooling control valve 1, a control method, a dual-clutch transmission cooling system 2 and a vehicle.
  • the working process includes:
  • the driving member 14 drives the spool 12 to move in the valve casing 11, so that the second block 122 blocks the first oil outlet 113, so that the first oil inlet 111, the second The second oil inlet 112 communicates with the second oil outlet 114 respectively through the oil passage 123, so as to provide a sufficient amount of cooling oil to the second oil outlet 114 to realize sufficient cooling of the clutch;
  • the driving member 14 drives the spool 12 to move in the reverse direction in the valve casing 11, so that the first stopper 121 blocks the second oil outlet 114, so that the first oil inlet 111.
  • the second oil inlet 112 communicates with the first oil outlet 113 respectively through the oil passage 123, so as to provide a sufficient amount of cooling oil to the first oil outlet 113 and realize sufficient cooling of the shafting;
  • the cooling control valve 1 provided by the present application can realize simultaneous control of the shafting and clutch cooling circuits, simplify the structure and control process, and save costs, and the cooling flow can be adjusted according to different working conditions without the need for additional cooling.
  • Large oil pump with 26 specifications realizes adjustment, reduces pressure loss and ensures transmission efficiency.
  • Fig. 4 is a schematic diagram of the principle of a cooling control valve 1 provided in the second embodiment.
  • the cooling control valve 1 provided in the present embodiment has the following difference: the driving member 14 is the pilot The solenoid valve, the pilot solenoid valve is connected with the valve core 12, and the cooling flow can be adjusted by controlling the current of the pilot solenoid valve, and the adjustment principle is the same as that of the electromagnet, which will not be repeated here.
  • the structure of the pilot solenoid valve reference may be made to related technologies, which will not be repeated here.
  • Fig. 5 is a schematic diagram of the principle of a dual-clutch transmission cooling system 2 provided in the second embodiment. As shown in Fig. 5, the dual-clutch transmission cooling system 2 in this embodiment adopts The valve core 12 is driven to also realize the adjustment of the cooling flow.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

La présente invention concerne une soupape de commande de refroidissement (1), un procédé de commande, un système de refroidissement de transmission à double embrayage (2) et un véhicule. La soupape de commande de refroidissement (1) comprend : un logement de soupape (11) pourvu d'une première entrée d'huile (111), d'une seconde entrée d'huile (112), d'une première sortie d'huile (113) et d'une seconde sortie d'huile (114), la première entrée d'huile (111) étant en communication avec la seconde entrée d'huile (112), et la première entrée d'huile (111) et la seconde entrée d'huile (112) étant conçues pour être respectivement en communication avec la première sortie d'huile (113) et la seconde sortie d'huile (114) ; un noyau de soupape (12) inséré de manière mobile dans le logement de soupape (11), le noyau de soupape (12) étant pourvu d'un premier bloc d'arrêt (121) et d'un second bloc d'arrêt (122), un canal de passage d'huile (123) en communication avec la première entrée d'huile (111) et la seconde entrée d'huile (112) étant disposée entre le premier bloc d'arrêt (121) et le second bloc d'arrêt (122), et la première sortie d'huile (113) et la seconde sortie d'huile (114) étant conçues séparément pour être en communication avec le canal de passage d'huile (123) ; et un élément d'entraînement (14) raccordé à une source d'alimentation externe, l'élément d'entraînement (14) étant raccordé en transmission avec le noyau de soupape (12), et l'élément d'entraînement (14) étant apte à entraîner le noyau de soupape (12) à se déplacer de telle sorte que le premier bloc d'arrêt (121) et le second bloc d'arrêt (122) peuvent respectivement bloquer ou libérer la seconde sortie d'huile (114) et la première sortie d'huile (113).
PCT/CN2022/089178 2021-06-18 2022-04-26 Soupape de commande de refroidissement, procédé de commande, système de refroidissement de transmission à double embrayage et véhicule WO2022262430A1 (fr)

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CN202110676435.8 2021-06-18
CN202110676435.8A CN113357352B (zh) 2021-06-18 2021-06-18 冷却控制阀、控制方法、双离合变速器冷却系统及车辆

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CN113357352B (zh) * 2021-06-18 2023-02-21 中国第一汽车股份有限公司 冷却控制阀、控制方法、双离合变速器冷却系统及车辆
CN113932006B (zh) * 2021-10-29 2022-12-27 蜂巢传动系统(江苏)有限公司保定研发分公司 Dht变速器液压控制系统

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